On August 4th 2008 at 7pm, my wife and I observed at very high altitude what appeared to me a blinking light that appeared to go around in a circle. It was clear, the sun was still out. I have very good vision and was unable to distiguish it as any type of airplane.

At that same time there where a few planes I could see, also at high altitude and clearly could make them out as airplanes.

It moved from East to West across the sky at about the same rate I would see a satilight at night.

Is it possible that I could have seen a satilight during the day? But that would not explain the light that appeared to rotate. I could make nothing out but the light. It was very very high in the sky.

((NUFORC Note: The ISS was visible over Hudson at 21:37 hrs. in the southwest sky. Hence, it quite well might have been seen by someone with good eyesight some 94 minutes earlier, we believe. However, the albedo from the ISS is not seen to blink. PD))